Posted by SB in IN on July 16, 2011 at 13:10:22 from (216.8.206.193):
In Reply to: Overhauled F-20 posted by Evan Mellott on July 15, 2011 at 20:10:34:
I'm not gonna disagree with any of the posts. Yes, inspect the check ball in the filter housing base, good idea. Make sure the regulator on the oil pump is in good working order. Make sure the seal to the block/spray bar is good. If all of that is good I'll bet that the oil pump gears is worn out. You need to check the lash in the gears. If you get more than slight movement between the gears,it's too much. Also along side that, make sure the shaft is in good shape. If the shaft is worn and the idler gear pin is worn, that will also cause excessive lash in the gears. Also, I wet sand the bottom plate that the gears ride against until you don't see any wear marks in it, it all helps in the long run. This engine should take no time to build oil pressure. I put my pumps up dry, crank them over about 10-20 times and get oil out the gauge hole. Normally build oil pressure in a matter of seconds. Any engines that I build I want to see at least 15 psi at high idle, most of them run around 20 psi high idle hot w/ 15/40 oil. About 8-10psi low idle hot. Also, the repop gauge from Rice do not react the same as the old originals. I personally don't like them. I am use to the old gauges that run pegged all the time and when they read anything else you know you have a problem. Good luck to ya and have fun.
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